Control casing-head.



A. G-. HEGGEM.

CONTROL CASING HEAD.

APPLICATION nun MAE. 4, 1914.

: 1 a Patented 'Apr."7,'1f91 l 2 SHEETS-SHEET 1 A. G. HEGGBM.

CONTROL CASING HEAD. APPLICATION FILED MAR. 4, 1914.

Patented A1337, 1914 1 ,QZAQL 2 SHEETS-$HBET 2.

fins-ran mares ALFld-ED Gr. HEGGEM, (3F PITTSBURGH, PENNSYLVANIA CONTROLCASING-HEAD.

Specification of L'ettersPaten-t.

Application filed March 4,1914. Serial No. 822,292..

Patented Apr. "II, 1914.

(DEDICATED TO THE PUBLIC.)

I Z all 'LUILOm 25 may concern:

scribed herein may be used by casing heads for oil,

State of Pennsylvania,

Be it known that I, Amman G. Hessian, a citizen of the United States,residing at Pittsburglnin the county of Allegheny and have invented newand useful Improvements in Control Casing- Heads, of which the followingis a speciiication. X

In accordance with the provisions of the act of Mar. 3, 1883, ch. 143,22 Stat. ll. 625, it is hereby stipulated that the invention detheGovernment, or any of its oflicers or employees in prosecution of workfor the Gmflernment, or

by any other person in the United States,

without the payment to me of any royalty thereon. I

This invention relates to improvements in 7 gas or other wells andincludes a valve for controlling the flow of gas, oil, water or'otherfluid from a well.

.An object of the invention is to provide a casing head simple andcompact in design and having a controlling valve which when in certainpositions will permit the usual drilling and shooting operations, butwhich may be quickly turned to operative positions for controlling-thefiow'oi' oil, gas, or other fluid as occasion may require.

Another object is to so design the casing head and valve operating meansthat projecting and other ortions'will not be liable to, injury when sujected to-the necessarily rough handling incident to transportation anduse.

Another object is toadapt such a casing head to be used as a casingconnection and provide means for protecting the connecting elements whennot so used.

With the foregoing and other objects in view, reference is had to theaccompanying drawings wherein like reference characters denotecorresponding parts throughout the several views.

Figure 1 is a plan view of a casing head constructed in accordance withthe present invention.- Fig. 2 is avertical section on the line 22 ofFig. 1.. Fig. 3 is a vertical section on the line 3-3 of Fig. 1, lookingto ward the left. Fig. 4. is a horizontal section on the line 4.-4 ofFig. 2; Fig. 5 is a side elevation of thedevice. Fig. 6 is a persp ed,

tive-view of the valve plug, Fig. 7 is a perspective view of aprotective casing nipple."

The casing head comprises a 1%. body, 1,

having a longitudinal bore, 2, a transverse passage, 3, forming togethera threcway passage, anda cylindrical bore, 4, at right angles to thelongitudinal bore and to the transverse passage in the plane of thelatter. Each end of the three-way passage is screwthreadcd at 5, 6 and7, respectively, the threads at 5 designed to secure the head to theWell casing, the threads at 6 permitting attachment of a flow line fromthe head to a flow tank, and the threads at 7 permitting any desiredpipe connection or the inscrtion of a plug to close theopeningand'lpreoccur around the valve. The opening at the top above the threads7 is counter-bored to provide ashoulder 8 and flange 9 for seating anordinary oil saver disk, which may be held in place by setscrews 10. Thebore 2 permits tho entrance of tools for drilling or of a torpedo whenit is desired to shoot the as shown in Fig. '3.

Within the bore, 4, is mounted a cylindrical valve plug, 12, having athree-way passage, 13, corresponding to the three-way passage of the Tbody, 1, and registering sition as shown in Fig. 2.- The'ends of thevalve, 12, are reduced to form annular reoesse's, 1 1, to receiveasbestos, hydraulic or other suitable packing rings 15. The ends 01 thevalve plug are further provided with holes, 16, for the reception ofbolts, 17, which secure the plates or glands, 18,-in place. The plates,18, are each provided with a flange, 19, for compressing the packing,15. That portion of each plate, 18, outside the flange, 19, overlaps thebody of the casing head to retain the valve plug in place. The casinghead is further annularly recessed or counterbored at 20 to fit theglands, 18, and toreceive a asket, not shown, if further packing beesire dr Each'plate or gland, 18, is provided with an exterior raisedportion, 21, andis recessedas at 22 to enable the insertion of a pinchbar or a piece of pipe to serve as a valve handle. Incidentally'therecesses, 22, may be arranged as shown whereby the position ot thepassages in the valve relative tothe passages in the T head may beindicated. 1

The operation of the device When it becomes desirableitch/control. the

vent any small leakage which may possibly,

is apparent...

well. During drilling operations the threads. 7 are protected by a shortnipple 11 inserted therewith when in open or inoperative powell.

well, the valve may be turned within its seat in any one of three ways.By turning 90 counter clockwise from the position shown in the severalfigures of the drawing, the fluid may be shut within the well, leavinboth horizontal and top openings free and unobstructed, or it may beturned 90 in clockwise direction and preventvertical flow of fluid,which would then be deflected through the side outlet and conducted bymeans of a lead line to a flow tank. Amove ment of 180 would excludefluid from the side outlet and yet permit free passage through the topopening. 3'

In operation it will become apparent that with this casing head on thetop of a well there is no need of wasting any: oil or gas. Even thatfluid which at present is lost when shooting a'well can be saved; thus,

after a torpedo has been set and the squib started into the well, thevalve plug may be turned to close the top opening in the casing head andthe fluid thrown from the well by the shot will pass through the sideoutlet and lead line and be collected in tanks. Another contingencywhich will be taken care of is where gas is encountered unex-' pectedlyand catches fire at the head of the This casing head may be closedpromptly, leaving a very small opening about the drilling line throughwhich only a small amount of gas could escape and the flames immediatelybrought under control without danger to the rig or to the lives of theworkmen.

In place of screw threads at 5 or 6, any other well known fasteningmeansmay be employed. I

I claim 1. A casing head comprising a body having a longitudinal bore, atransverse passage opening therefrom, and a transve'rse'cylindrical boreat right angles to the longitudinal bore and to the transverse passa eand in the plane of thelatter, a cylindrical valve plug fittingthecylindrical bore and having a three way passage corresponding to thelongitudinal bore and transverse passage of the body and registeringtherewith when in open or inoperative position, and plates secured tothe ends of the valve pin and overlap ing the body to retain the va vein'place an whereby the valve may be turned to its several positions.

2, A casing head comprising a T body having a longitudinal bore, atransverse passage opening therefrom, and a transverse bore in the planeof and at right angles tothe transverse passage, a rotary valve plugfitting said transverse bore and having a three-way passagecorresponding to the lonweasel gitudinal bore and transverse passage ofthe annular recesses to retain the valve in place and form a fluid-tightjoint, and whereby the valve may be turned from either end to itsseveral positions.

3. A easing head comprisi a T body having a three-way passage t erethrouh corresponding to the branches of the T body and a bore transversely ofthe body and its passage at the juncture of the head and stem of' the T,a valve plug in said bore having a three-way passage corresponding tothat of the Tbody, and plates secured to the ends of the' valve plug andoverla ping the T body to retain the valve in p ace, such plate havingexteriorly a recessed raised portion whereby a pinch bar or other toolmay be applied for turning the valve to its several positions.

{1. A casing head comprisin a T body having a three-way passage terethrough and a bore transversely thereof, each end of said bore havingan annular countersunk recess for receiving an annular packing ring, athree-way .valve plug in said transverse bore, having its ends reducedto vform annular recesses, and plates bolted to the ends of the valveand overlapping the annular recesses and the T body to retain the valvein place, and each plate having an annular flange to register with theannular recess of the valve plug to compress the packing therein toforms. fluid tight joint."

5. A casing head comprising a T body with a transverse plug valvetherein, said body and valve having three-way passages thereincorresponding to the branches of the T, each of the three ends of thepassage in the body being provided with means for making casing andbranch pipe connections, one end of the straight away bore of the T bodybeing screw-threaded and annularly countersunk exteriorl of the screwthreads to form a flanged s oulder andprovided with set screws forretaining there n an ordinary oil saver disk, and a screw threadedcasing nipple engaging the screw threads below said flangedshoulder toprotect the threads from injury when not in use as a casing connection.

Intestimony whereof, I aflix my signature I in the presence of twowitnesses.

ALFRED G. HEGGEM. lVitnessesz.

JAMES J. DELONEY, UNION B. WHITE.

